[Sloiiogniph XX.] 



I'lio imhlications of thi> United States Geolojtical Siirvny arc issued in acoordance witli the statute 

 api>roviMl March :f, lr79, «hieli declares that — 



'■Tlie publieatiousof the Geological Survey shall consist of the annual report of operations, geo- 

 logical and economic maps illustrating the resources and classification of the lands, and reports upon 

 general and economic geology and paleontology. The annual report of operations of the Geological 

 Survey shall accompany the annual report of the Secretary of the Interior. AU special memoirs and 

 reports of said Survey shall he issued in uniform quarto .series if deemed necessary by the Director, hut 

 otherwise in ordinary octavos. Three thousand copies of eacli shall he publisheil lor scientific exchanges 

 and fors.ilf at tin- pilcc of publication; and all literary and cart(>gr:iphi(' materials reci'ived in exchange 

 shall hr llie property of the Uniled States and form a i)art of the liliraiy of the organization: And the 

 money resulting from the sale of such jmblicatious shall he covered into the Treasury of the United 

 States." 



The following joint resolution, referring to all government publications, was passed bv Congress 

 July 7, 1S82: 



"That whenever any document or report shall be ordered printed by Congress, there shall he 

 printed, in addition to the number in each case stated, the 'usual number' (1,900) of copies for binding 

 and distrilmtion among those entitled to receive them." 



Except in those cases in which an extra number of any publication has been supplied to the Sur- 

 vey by special resolution of Congress or has been ordered by the Secretary of the Interior, this office 

 has no copies for gratuitous distribution. 



ANNUAL KEPORTS. 



I. First Annual Reportof the United States Geological Survey, by Clarence King. IfiSO. ■<-. 79 

 pp. 1 map.— A preliminary report describing plan of organization and publications. 



II. Second Annual Report of the United States Geological Survev, 1880-'rtl, bv .1. W. Powell. 



1882. 8^'. Iv, ;>S pp. li-2 pi. 1 map. 



III. Third Annual Report of the United States Geological Survey, I881-'8;i, by J. \V. I'owell. 



1883. 8°. xviii, 564 pp. 07 pi. and maps. 



IV. Fourth Annual Report of the United States Geological Survey, 1882-83, by .1. \V. I'owell. 



1884. 8°. xxxii, 473 pp. 8.') jd. and maps. 



V. Fifth Annual Report of the United States Geological Survey, 1883-'84, by J. \V. I'owell. 



1885. 8"^. xxxvi, 4C9 pp. 58 pi. and mans. 



VI. Sixth Annual Report of the United States Geological Survey, 1884-'85, by .T. W. Pow ell. 

 1885. 8°. xxix, 570 pp. 05 pi. and maps. 



VII. Seventh Annual Report of the United States Geological Survey, 1885-'86, by J. W. Powell. 



1888. 8'='. XX, 050 pp. 71 pi. and maps. 



VIII. Eighth Annnal Report of the United States Geological Survey, 1886-'87, by J. W. I'owell. 

 1869. 8°. 2 v. xix, 474, sii pp. 53 pi. and maps; 1 p. 1. 475-1003 pp. 54-76 pi. and maps. 



IX. Ninth Annual Report of the United States Geological Survev, 1887-88, by J. W. Powell. 



1889. 8°. xiii, 717 pp. 88 ))1. and maps. 



X. Tenth Annual Report of the United States Geological Survey, 1888-'89, by J. W. Powell. 



1890. 8". 2 v. sv,774 pp. 98 pi. and maps; viii, 123 pp. 



XI. EleventhJAnnual Report of the United States Geological Survey, 1889-'90, by J. W. Powell. 



1891. S'^. 2 V. XV, 757 pp. 00 pi. and maps ; ix, 351 pp. ;i() pi. and maps. 



XII. Twelfth Annual Report of the United States Geoh)gical Survey, l890-'in, by ,i. \V. Powell. 

 1891. 8"^ 2 V. xiii, 675 pp. .53 pi. and maps ; xviii, 576 pp. 146 pi. and maps. 



MONOGRAPHS. 



I. Lake Bonneville, by Grove Karl Gilbert. 1890. 4<^. xx, 438 pp. 51 pi. 1 map. Price §1.50. 



II. Tertiarv llistorv of the Grand Canon District, with atla.s, by Clarence E. Dutton, Capt., U. S. A. 

 1882. 4'^. xiv, 204 pp. "42 pi. and atlas of 24 sheets folio. Price §10.00. 



III. Geologv of the Co-.nstock Lode and the Washoe District, with atlas, hv George K. Becker. 

 1882. 4^. XV, 422 pp. 7 \>\. ami atlas of 21 sheets folio. Price SILOO. 



IV. Comstock Mining and Miners, by Eliot Lord. 1883. 4''. xiv, 451pp. 3 pi. Price §1.. 50. 



